From the FAQs

Those attending the ceremony will walk across the stage platform while their name is announced by a professional nomenclator, and their digital slide is shown. All graduating students, regardless of attendance at the ceremony, will have a digital slide available (with audio of a professional nomenclator announcing the graduate's name) for viewing on commencement.psu.edu/live/. Those not in attendance will not have their name announced and their slide will not be displayed during the ceremony.